Heating mechanism for sealing element detection

Abstract

The heating mechanism comprises a detection box body, a main shaft and a sealing ring, one end of the main shaft extends into the detection box body and is provided with a rotating disc, the other end of the main shaft is connected with a driving mechanism, the driving mechanism is used for driving the main shaft to rotate, and the sealing ring is arranged between the rotating disc and the inner wall of the detection box body. The rotating disc and the sealing ring are used for dividing a cavity of the detection box body into an oil storage cavity and a containing cavity, a temperature sensor is arranged on the detection box body, a heat conduction oil coil pipe is arranged in the oil storage cavity and provided with an oil outlet end and an oil inlet end, the oil outlet end and the oil inlet end extend out of the detection box body respectively, and the oil outlet end of the heat conduction oil coil pipe is communicated with a heat conduction oil circulating pump through a pipeline. The heat conduction oil circulating pump is communicated with a heat conduction oil heater through a pipeline, and the heat conduction oil heater is communicated with the oil inlet end of the heat conduction oil coil pipe. The heating device is uniform in heating, avoids local overheating and is good in heating stability.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing component testing, in particular to a heating mechanism used for sealing component testing. Background Art

[0002] The common seals for bearings are sealing rings. In the field of bearing seal testing, it is necessary to detect the sealing condition of the seals under high-speed rotation and high temperature. Figure 2 As shown, the existing test device includes a test box, a heating rod, a rotating shaft and a sealing ring. The sealing ring is located in the test box and installed on the rotating shaft. A rotating disk is fixed on the outside of the rotating shaft. The sealing ring is arranged between the rotating disk and the inner wall of the test box. It also includes a motor for driving the rotating shaft to rotate. The test box is filled with lubricating oil through an oil pipe. The heating rod is extended into the test box to heat the lubricating oil. The local temperature on the surface of the heating rod is too high, and carbon deposits are easily formed and cover the heating rod, thereby hindering the heating rod from heating the lubricating oil, causing the heating effect of the heating rod to deteriorate, and interfering with the accuracy of the experiment. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a heating mechanism for sealing component detection.

[0004] The utility model adopts the following technical scheme to solve the above technical problems: a heating mechanism for sealing member detection, comprising a detection box, a main shaft and a sealing ring, wherein one end of the main shaft extends into the detection box and a rotating disk is provided at the end thereof, and the other end is connected to a driving mechanism, the driving mechanism is used to drive the main shaft to rotate, the sealing ring is arranged between the rotating disk and the inner wall of the detection box, the rotating disk and the sealing ring are used to divide the detection box cavity into an oil storage cavity and a accommodating cavity, a temperature sensor for detecting the oil temperature of the oil storage cavity is provided on the detection box, a heat transfer oil coil is provided in the oil storage cavity, the heat transfer oil coil has an oil outlet end and an oil inlet end, the oil outlet end and the oil inlet end extend out of the detection box respectively, the oil outlet end of the heat transfer oil coil is connected to a heat transfer oil circulation pump through a pipeline, the heat transfer oil circulation pump is connected to a heat transfer oil heater through a pipeline, and the heat transfer oil heater is connected to the oil inlet end of the heat transfer oil coil.

[0005] As a preferred solution, the detection box is provided with an oil filling port connected to the oil storage chamber, and a plugging head is provided at the oil filling port for sealing the oil filling port. The detection box is also provided with an oil outlet pipe connected to the oil storage chamber, and a switch valve is provided on the oil outlet pipe.

[0006] As a preferred solution, the heat transfer oil coil is annularly coiled in the oil storage cavity.

[0007] As a preferred solution, the front end of the detection box has a front cover, and the rear end has a rear cover. The front cover and the rear cover are respectively connected to the detection box by bolts. A first mounting sealing ring is provided between the detection box and the front cover, and a second mounting sealing ring is provided between the detection box and the rear cover.

[0008] As a preferred solution, a first annular groove cooperating with a first mounting seal ring is provided at the front end of the detection box body, and a second annular groove cooperating with a second mounting seal ring is provided at the rear end of the detection box body.

[0009] As a preferred solution, the driving mechanism includes a driving motor, and an output shaft of the driving motor is connected to the main shaft through a coupling.

[0010] As a preferred solution, the end of the main shaft extending into the detection box is provided with a fixed sleeve, and the rotating disk sleeve is arranged on the outer wall of the fixed sleeve.

[0011] The beneficial effects of the present application are as follows: 1. The present application sets a thermal oil heater and a thermal oil coil. The heated thermal oil enters the thermal oil coil, exchanges heat with the lubricating oil, and starts to heat the lubricating oil. The heating is uniform and local overheating is avoided. Compared with the existing heating rod, carbon deposits are effectively avoided and the heating stability is good.

[0012] 2. By setting the temperature sensor, it is convenient to detect the lubricating oil temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the prior art.

[0015] Markings in the figure: 1. Detection box, 11. Sealing head, 12. Oil outlet pipe, 121. Switch valve, 13. Front cover, 14. Rear cover, 15. Oil storage chamber, 16. Accommodating chamber, 2. Main shaft, 21. Fixed sleeve, 22. Rotating disk, 3. Driving motor, 4. Sealing ring, 5. Temperature sensor, 6. Thermal oil coil, 7. Compression sleeve, 8. Fixing bolt. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] See also Figure 1 The embodiment of the utility model provides a heating mechanism for seal detection, including a detection box 1, a main shaft 2 and a sealing ring 4, one end of the main shaft 2 extends into the detection box 1 and is provided with a rotating disk 22 at the end, and the other end is connected to the driving mechanism, the driving mechanism is used to drive the main shaft 2 to rotate, the sealing ring 4 is arranged between the rotating disk 22 and the inner wall of the detection box 1, the rotating disk 22 and the sealing ring 4 are used to divide the cavity of the detection box 1 into an oil storage cavity 15 and a accommodating cavity 16, the detection box 1 is provided with a temperature sensor 5 for detecting the oil temperature of the oil storage cavity 15, the detection end of the temperature sensor 5 extends into the oil storage cavity 15, a heat transfer oil coil 6 is arranged in the oil storage cavity 15, the heat transfer oil coil 6 has an oil outlet end and an oil inlet end, the oil outlet end and the oil inlet end extend out of the detection box 1 respectively, the oil outlet end of the heat transfer oil coil 6 is connected with a heat transfer oil circulation pump through a pipeline, the heat transfer oil circulation pump is connected with a heat transfer oil heater through a pipeline, and the heat transfer oil heater is connected with the oil inlet end of the heat transfer oil coil 6.

[0018] Among them, the detection box body 1 is provided with an oil filling port connected to the oil storage chamber 15, and a plugging head 11 is provided at the oil filling port for sealing the oil filling port. The detection box body 1 is also provided with an oil outlet pipe 12 connected to the oil storage chamber 15, and a switch valve 121 is provided on the oil outlet pipe 12. The thermal oil coil 6 is annularly coiled in the oil storage chamber 15. The thermal oil heater of the present application adopts a thermal oil heater well known to those skilled in the art. The structure and principle of the thermal oil heater are not described in detail in the present application.

[0019] Specifically, the front end of the detection box 1 has a front cover 13, and the rear end has a rear cover 14. The front cover 13 and the rear cover 14 are connected to the detection box 1 by bolts respectively. A first mounting seal ring is provided between the detection box 1 and the front cover 13, and a second mounting seal ring is provided between the detection box 1 and the rear cover 14. The front end of the detection box 1 is provided with a first annular groove that cooperates with the first mounting seal ring, and the rear end of the detection box 1 is provided with a second annular groove that cooperates with the second mounting seal ring. The rear end cover 14 is provided with a through hole for the main shaft 2 to pass through. It should be noted that the parts not described in detail in this application are all prior art.

[0020] In addition, the driving mechanism includes a driving motor 3, the output shaft of the driving motor 3 is connected to the main shaft 2 through a coupling, the end of the main shaft 2 extending into the detection box 1 is provided with a fixed sleeve 21, the rotating disk 22 is sleeved on the outer wall of the fixed sleeve 21, and the rotating disk 22 is welded to the fixed sleeve 21.

[0021] The present application sets a thermal oil heater and a thermal oil coil 6. The heated thermal oil enters the thermal oil coil 6, exchanges heat with the lubricating oil, and starts to heat the lubricating oil. The heating is uniform and local overheating is avoided. Compared with the existing heating rod, carbon deposits are effectively avoided and the heating stability is good.

[0022] Of course, the present invention is not limited to the above-described implementations. Several other implementations based on the design concept of the present invention are provided below.

[0023] For example, in other embodiments, different from the embodiments described above, an oil outlet connected to the accommodating chamber 16 is provided at the lower end of the detection box 1, and an electromagnetic switch valve is provided at the oil outlet. By providing the accommodating chamber 16, it is convenient to detect whether lubricating oil leaks from the sealing ring 4 into the accommodating chamber 16, thereby detecting the sealing effect of the sealing ring 4 under high temperature and high-speed rotation conditions, and observing whether oil leaks through the oil outlet, thereby facilitating observation of whether there is oil in the accommodating chamber 16.

[0024] For example, in other embodiments, different from the embodiments described above, in this embodiment, a mounting through hole for being mounted on the fixed sleeve 21 is provided on the rotating disk 22, the mounting through hole and the fixed sleeve 21 are interference fit, and a limiting ring is provided on the end of the outer wall of the fixed sleeve 21 opposite to the driving motor 3, which is abutted against the end of the rotating disk 22, the limiting ring and the fixed sleeve 21 are made as one piece, the outer diameter of the limiting ring is larger than the outer diameter of the fixed sleeve 21, and the inner diameter of the limiting ring is equal to the inner diameter of the fixed sleeve 21.

[0025] In addition, a clamping sleeve 7 is also sleeved on the fixed sleeve 21. The clamping sleeve 7 is open at one end facing the rotating disk 22 and the end thereof is abutted against the rotating disk 22. The end of the clamping sleeve 7 facing away from the rotating disk 22 is a closed end. The clamping sleeve 7 is connected to the main shaft 2 through a fixing bolt 8. The closed end of the clamping sleeve 7 is provided with a threaded hole through which the fixing bolt 8 passes, and the main shaft 2 is provided with a threaded countersunk hole for cooperating with the fixing bolt 8.

[0026] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model fall within the protection scope of the present utility model.

Claims

1. A heating mechanism for seal detection, characterized in that: The invention comprises a detection box (1), a main shaft (2) and a sealing ring (4), wherein one end of the main shaft (2) extends into the detection box (1) and is provided with a rotating disk (22) at the end thereof, and the other end is connected to a driving mechanism, the driving mechanism is used to drive the main shaft (2) to rotate, the sealing ring (4) is arranged between the rotating disk (22) and the inner wall of the detection box (1), the rotating disk (22) and the sealing ring (4) are used to divide the cavity of the detection box (1) into an oil storage cavity (15) and a receiving cavity (16), and the detection The box body (1) is provided with a temperature sensor (5) for detecting the oil temperature of the oil storage chamber (15). The oil storage chamber (15) is provided with a heat transfer oil coil (6). The heat transfer oil coil (6) has an oil outlet and an oil inlet. The oil outlet and the oil inlet extend out of the detection box body (1) respectively. The oil outlet of the heat transfer oil coil (6) is connected to a heat transfer oil circulation pump via a pipeline. The heat transfer oil circulation pump is connected to a heat transfer oil heater via a pipeline. The heat transfer oil heater is connected to the oil inlet of the heat transfer oil coil (6).

2. A heating mechanism for sealing component detection according to claim 1, characterized in that: The detection box body (1) is provided with an oil filling port connected to the oil storage chamber (15), and a plugging head (11) for plugging the oil filling port is provided at the oil filling port. The detection box body (1) is also provided with an oil outlet pipe (12) connected to the oil storage chamber (15), and a switch valve (121) is provided on the oil outlet pipe (12).

3. A heating mechanism for sealing component detection according to claim 1, characterized in that: The heat transfer oil coil (6) is arranged in an annular shape and is wound in the oil storage chamber (15).

4. A heating mechanism for sealing component detection according to claim 1, characterized in that: The detection box body (1) has a front end cover (13) at the front end and a rear end cover (14) at the rear end. The front end cover (13) and the rear end cover (14) are respectively connected to the detection box body (1) by bolts. A first mounting seal ring is provided between the detection box body (1) and the front end cover (13), and a second mounting seal ring is provided between the detection box body (1) and the rear end cover (14).

5. A heating mechanism for sealing member detection according to claim 4, characterized in that: A first annular groove cooperating with a first mounting seal ring is provided at the front end of the detection box body (1), and a second annular groove cooperating with a second mounting seal ring is provided at the rear end of the detection box body (1).

6. A heating mechanism for sealing component detection according to claim 1, characterized in that: The driving mechanism comprises a driving motor (3), and an output shaft of the driving motor (3) is connected to the main shaft (2) via a coupling.

7. A heating mechanism for sealing member detection according to claim 1, characterized in that: The end of the main shaft (2) extending into the detection box (1) is provided with a fixing sleeve (21), and the rotating disk (22) is sleeved on the outer wall of the fixing sleeve (21).

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